$52+ Cheap flights from Illinois to California
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to California with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to California
Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to California (USCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Januari 21, 2025.
Round-trip from | $105 (Cheapflightsfares) |
|---|---|
One-way from | $52 (Frontier) |
Good round-trip deal | $238 or less |
Good one-way deal | $118 or less |
Find flight deals from Illinois to California
Cheapest flights from Illinois to CaliforniaExplore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Januari 21, 2025.
Explore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Januari 21, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Flightnetwork deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Illinois to California within your budget
Customize your flight search to find flights from Illinois to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Januari 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Sab 2/22
7:59 pm-10:15 pm
Nonstop4h 16m
Las Vegas Harry Reid Intl
Kam 2/27
6:00 am-8:51 pm
1 stop12h 51m
ChicagoLas Vegas
MDW - LAS
MDWLAS
Chicago Midway
Kam 2/6
2:56 pm-10:25 pm
1 stop9h 29m
Las Vegas Harry Reid Intl
Kam 2/13
9:48 pm-12:17 am
1 stop24h 29m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Sab 2/8
10:47 pm-12:54 am
Nonstop4h 07m
Las Vegas Harry Reid Intl
Kam 2/13
11:16 pm-5:00 am
Nonstop3h 44m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Jum 2/7
10:47 pm-12:54 am
Nonstop4h 07m
Las Vegas Harry Reid Intl
Rab 2/12
4:08 pm-9:50 pm
Nonstop3h 42m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sel 2/25
6:26 pm-8:07 pm
Nonstop3h 41m
Las Vegas Harry Reid Intl
Min 3/2
7:59 pm-9:16 am
1 stop11h 17m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Sab 3/1
7:46 pm-10:04 pm
Nonstop4h 18m
Las Vegas Harry Reid Intl
Sel 3/4
8:00 am-1:40 pm
Nonstop3h 40m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Kam 2/27
6:50 am-11:48 am
1 stop6h 58m
San Diego
Min 3/2
9:13 pm-5:05 am
1 stop5h 52m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sen 2/3
7:50 am-12:29 am
1 stop18h 39m
San Diego
Rab 2/5
7:26 pm-5:31 am
1 stop8h 05m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Jum 2/21
9:56 pm-9:01 am
1 stop13h 05m
San Diego
Jum 2/28
7:41 pm-6:07 am
1 stop8h 26m
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Kam 4/10
7:44 pm-4:35 pm
1 stop22h 51m
Los Angeles
Min 4/13
2:35 pm-12:15 am
1 stop7h 40m
Best time to book a flight from Illinois to California
Have a flexible travel schedule? Discover the best time to fly to California from Illinois with our price prediction graph.
Travel insights for flights from Illinois to California
Get recent, data-driven insights about flights from Illinois to California including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Illinois to California?
Currently, January is the cheapest month in which you can book a flight from Illinois to California (average of $246). Flying from Illinois to California in March is currently the most expensive (average of $344). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to CA?
Find hourly flight availability from Illinois to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Januari 21, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to California as you normally would.
Weekly flight availability from Illinois to California
Explore weekly flight availability from Illinois to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated Januari 21, 2025.
The most flights from USIL to USCA are scheduled on a Monday (91 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (52 on average).
Rainfall in California by month
Plan your trip to California by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in California ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.
Temperature in California by month
Plan your trip to California by taking into account the average temperature totals by month.
If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated Januari 21, 2025.
See what other customers who have flown with Southwest, Frontier and Delta from Illinois to California have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Related info for your journey
Find useful and relevant information for your journey from Illinois to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to California
See prices for flight routes from nearby airports that may be better suited for you.
Top 9 airlines flying from Illinois to California
Discover the top 9 airlines that operate flights from Illinois to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Januari 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$162 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$82 | Average$208 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$94 | Average$256 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$128 | Average$412 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$137 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$140 | Average$458 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$350 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$152 | Average$461 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$179 | Average$499 | FlexibilityNo cancel fee | On-time71% |